The Doobie Brothers formed in 1970 with Tom Johnston as their lead singer and primary songwriter. They had a number of hits, including "China Grove," "Black Water" and "Listen To The Music" before Johnston had to leave the band in 1975 because of illness. This is when Michael McDonald joined the band and contributed hits like "Takin' It to the Streets" and "What a Fool Believes." The band broke up in 1982, but in 1987 they reformed with their original lineup for a concert to benefit Vietnam veterans, which led to a series of concerts and a new record deal. In 1989, they came out with Cycles and scored a Top-10 hit with "The Doctor," which was the first single for the re-formed Doobies. Tom Johnston told us: "I actually wrote that song before the band even re-formed. It wasn't called 'The Doctor' then. I was playing with some guys around here in Marin County. I was in a band called Border Patrol, and the chorus that you hear where the actual 'doctor' part is, 'I need to go to the doctor, yadda yadda,' didn't exist. That was written by Charlie Midnight and Eddie Schwartz, that whole – if you want to call it - hit lead chorus. I was never that nuts about that song, I gotta be honest with you. It just sounded way too poppy and slick for me. I just didn't think it really had quite the balls as some of our previous tunes. And, you know, it served its purpose. It got us national attention for a little bit. It didn't last very long. But you know, people are paying attention again, and we had just come out with a new album, so that was a good thing." (The Doobie Brothers have been together ever since. Check out our full interview with Tom Johnston to learn more.)